分子分离

These novel indocyanines haveing good water solubility, fluorescent properties and photostability, can be used in biological analysis as fluorescent labeling reagents.

设计、合成的新荧光染料具有较好的水溶性、光稳定性和荧光性能，可望在生物分子标记、分析和分离等领域中得到重要应用。

Methods: Phytolacca acinosa Roxb. polysaccharide was isolated and purified by high performance gel filtration chromatography with evaporative light scattering detector.

将商陆多糖分离纯化，采用HPGFC-ELSD法测定重均相对分子质量分布。

To study the biologicaleffect of pulsed electromagnetic fieldson the proliferation of Immunomagneticseparated human precartilaginous stem cellsin vitro.To establish immortalizedhuman precartilaginous stem cellsstrain and provided stable cell resource to studythe molecular mechanism of gene targeting on differentiation of PSCs.①The cells from the aborted fetus\'s metaphysis were digested by collagenase,the PSCs were isolated by magnetic-activated cell sorting,then were subculturedand amplified.

探讨体外分离、培养人前软骨干细胞的可行性，分析其表型特点；研究脉冲电磁场对免疫磁性细胞分选的人前软骨干细胞增殖的生物学影响；构建猿肾病毒40大T抗原基因(SV40Tag)介导的永生化人前软骨干细胞株，为下一步基因打靶研究其分化分子机制提供稳定的细胞来源。

Therefore, there're only single charged parent ions of the sample gas molecule under the condition of photons' irradiation effect, and no fragment ions produced. Consequently, the mass spectra obtained from photoionization is very simple, and the sample gas can be detected without preseparation.

样品气体分子在光子的照射作用下只产生单电荷母离子，不产生碎片离子，以该电离方式获得的质谱图非常简单，因此气体样品不需分离即可进行检测。

Methods Based on the index related to protopine, to investigate the effect of different aperture membrane and orthogonal test of separation parameters on membrane separation efficiency of Xiatianwu Injection.

采用不同截留分子的膜组件、操作参数进行正交设计，以与原阿片碱相关的各种指标考察不同膜组件及操作参数对膜分离效果的影响。

Methods A clinical infection fungus strain was isolaled from mouth pseudomembrane vaginal,nasal secretions,urine,faces,and live puncture tissue,injured skin tissue of a female patient,who had no clear underlying disease.

方法从 1名未确诊女性患者受损皮肤，皮痂，口腔伪膜，阴道及口腔分泌物，尿便及肝穿刺组织，分离与培养出一种真菌，经生化分析，菌种鉴定分子生物学实验及DNA测序。

In this paper,the research progress on psychrophilic methanogens was reviewed,with the focus on thei...

本文针对研究者广泛关注的热点问题，从分离培养及生理生化特性、适冷机制和分子生物学研究几个方面，对嗜冷产甲烷菌的研究进展进行了全面的综述，并对其在低温厌氧生物处理技术中的应用前景进行了分析和展望。

In this paper, the research progress on psychrophilic methanogens was reviewed, with the focus on their culture, isolation, physiological and biochemical characters, molecular biological characters, and cold -adapted mechanisms. The application prospects of psychrophilic methanogens in low-temperature anaerobic technology were also analyzed.

本文针对研究者广泛关注的热点问题，从分离培养及生理生化特性、适冷机制和分子生物学研究几个方面，对嗜冷产甲烷菌的研究进展进行了全而的综述，并对其在低温厌氧生物处理技术中的应用前景进行了分析和展望。

An amount of psychrophilic bacteria was isolated from deep sea sediment collected from Prydz Bay, Antarctica. The strain AC167, which showed high cold-active chitinase activity, was screened from these bacteria. It was identified as a Pseudomonas species by 16S rDNA sequence comparison.

从南极普里兹湾深海底泥样品中分离得到一批嗜冷细菌，对这些嗜冷细菌进行了产几丁质酶菌株的筛选，对其中一株具有较高产酶活性的菌株AC167所分泌的几丁质酶进行了性质分析，并通过16S rDNA序列分析进行了菌株的分子鉴定。

Molecular imprinting polymers of pueraria were prepared with acrylamide as functional monomer.

首次将分子印迹技术用于天然产物的分离，结果表明制备的印迹聚合物具有较好的印迹效果。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。